Merge pull request #8466 from AvaloniaUI/more-compiled-binding-fixes

More compiled binding fixes

src/Avalonia.Diagnostics/Diagnostics/Controls/FilterTextBox.axaml

@@ -19,7 +19,7 @@
                   Classes="textBoxClearButton"
                   ToolTip.Tip="Clear"
                   Cursor="Hand"
-                  Command="{ReflectionBinding $parent[TextBox].Clear}"
+                  Command="{Binding $parent[TextBox].Clear}"
                   Opacity="0.5" />
           <ToggleButton Classes="filter-text-box-toggle"
                         ToolTip.Tip="Match Case"

src/Avalonia.Themes.Fluent/Controls/MenuItem.xaml

@@ -160,7 +160,7 @@
             </ContentPresenter>
             <Popup Name="PART_Popup"
                    WindowManagerAddShadowHint="False"
-                   MinWidth="{ReflectionBinding Bounds.Width, RelativeSource={RelativeSource TemplatedParent}}"
+                   MinWidth="{Binding Bounds.Width, RelativeSource={RelativeSource TemplatedParent}}"
                    IsLightDismissEnabled="True"
                    IsOpen="{TemplateBinding IsSubMenuOpen, Mode=TwoWay}"
                    OverlayInputPassThroughElement="{Binding $parent[Menu]}">

src/Avalonia.Themes.Fluent/Controls/ProgressBar.xaml

@@ -21,7 +21,7 @@
     <Setter Property="MinHeight" Value="{DynamicResource ProgressBarThemeMinHeight}" />
     <Setter Property="VerticalAlignment" Value="Center" />
     <Setter Property="Template">
-      <ControlTemplate>
+      <ControlTemplate TargetType="ProgressBar">
         <Border x:Name="ProgressBarRoot" ClipToBounds="True" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="{TemplateBinding CornerRadius}">          
             <Panel>
               <Panel x:Name="DeterminateRoot">
@@ -32,7 +32,7 @@
                 <Border x:Name="IndeterminateProgressBarIndicator2" CornerRadius="{TemplateBinding CornerRadius}" Margin="{TemplateBinding Padding}" Background="{TemplateBinding Foreground}" />
               </Panel>
               <LayoutTransformControl x:Name="PART_LayoutTransformControl" HorizontalAlignment="Center" VerticalAlignment="Center" IsVisible="{TemplateBinding ShowProgressText}">
-                <TextBlock Foreground="{DynamicResource SystemControlForegroundBaseHighBrush}" Text="{ReflectionBinding Value, RelativeSource={RelativeSource TemplatedParent}, StringFormat={}{0:0}%}" />
+                <TextBlock Foreground="{DynamicResource SystemControlForegroundBaseHighBrush}" Text="{Binding Value, RelativeSource={RelativeSource TemplatedParent}, StringFormat={}{0:0}%}" />
               </LayoutTransformControl>
             </Panel>
         </Border>

src/Markup/Avalonia.Markup.Xaml.Loader/CompilerExtensions/AvaloniaXamlIlCompiler.cs

@@ -45,10 +45,10 @@ namespace Avalonia.Markup.Xaml.XamlIl.CompilerExtensions
                 new AvaloniaXamlIlReorderClassesPropertiesTransformer()
             );
 
-            InsertBefore<ContentConvertTransformer>(                
-                new AvaloniaXamlIlBindingPathParser(),
+            InsertBefore<ContentConvertTransformer>(
                 new AvaloniaXamlIlSelectorTransformer(),
-                new AvaloniaXamlIlControlTemplateTargetTypeMetadataTransformer(),
+                new AvaloniaXamlIlControlTemplateTargetTypeMetadataTransformer(),                 
+                new AvaloniaXamlIlBindingPathParser(),
                 new AvaloniaXamlIlPropertyPathTransformer(),
                 new AvaloniaXamlIlSetterTransformer(),
                 new AvaloniaXamlIlConstructorServiceProviderTransformer(),

src/Markup/Avalonia.Markup.Xaml.Loader/CompilerExtensions/Transformers/AvaloniaXamlIlBindingPathParser.cs

@@ -122,10 +122,13 @@ namespace Avalonia.Markup.Xaml.XamlIl.CompilerExtensions.Transformers
                     throw new XamlParseException("Only one of ElementName, Source, or RelativeSource specified as a binding source. Only one property is allowed.", binding);
                 }
 
-                var mode = relativeSourceObject.Children
+                var modeProperty = relativeSourceObject.Children
                     .OfType<XamlAstXamlPropertyValueNode>()
-                    .FirstOrDefault(x => x.Property.GetClrProperty().Name == "Mode")
-                    ?.Values[0] is XamlAstTextNode modeAssignedValue ? modeAssignedValue.Text : null;
+                    .FirstOrDefault(x => x.Property.GetClrProperty().Name == "Mode")?
+                    .Values.FirstOrDefault() as XamlAstTextNode
+                    ?? relativeSourceObject.Arguments.OfType<XamlAstTextNode>().FirstOrDefault();
+                
+                var mode = modeProperty?.Text;
                 if (relativeSourceObject.Arguments.Count == 0 && mode == null)
                 {
                     mode = "FindAncestor";
@@ -212,16 +215,20 @@ namespace Avalonia.Markup.Xaml.XamlIl.CompilerExtensions.Transformers
                 }
                 else if (mode == "TemplatedParent")
                 {
-                    var parentType = context.ParentNodes().OfType<AvaloniaXamlIlTargetTypeMetadataNode>()
+                    var contentTemplateNode = context.ParentNodes().OfType<AvaloniaXamlIlTargetTypeMetadataNode>()
                         .FirstOrDefault(x =>
-                            x.ScopeType == AvaloniaXamlIlTargetTypeMetadataNode.ScopeTypes.ControlTemplate)
-                        ?.TargetType.GetClrType();
-
-                    if (parentType is null)
+                            x.ScopeType == AvaloniaXamlIlTargetTypeMetadataNode.ScopeTypes.ControlTemplate);
+                    if (contentTemplateNode is null)
                     {
                         throw new XamlParseException("A binding with a TemplatedParent RelativeSource has to be in a ControlTemplate.", binding);
                     }
 
+                    var parentType = contentTemplateNode.TargetType.GetClrType();
+                    if (parentType is null)
+                    {
+                        throw new XamlParseException("TargetType has to be set on ControlTemplate or it should be defined inside of a Style.", binding);
+                    } 
+
                     convertedNode = new TemplatedParentBindingExpressionNode { Type = parentType };
                 }
                 else

src/Markup/Avalonia.Markup.Xaml.Loader/CompilerExtensions/Transformers/AvaloniaXamlIlBindingPathTransformer.cs

@@ -105,6 +105,11 @@ namespace Avalonia.Markup.Xaml.XamlIl.CompilerExtensions.Transformers
                 {
                     startType = TypeReferenceResolver.ResolveType(context, text.Text, isMarkupExtension: false, text, strict: true).Type;
                 }
+                
+                if (dataTypeProperty?.Values.Count is 1 && dataTypeProperty.Values[0] is XamlTypeExtensionNode typeNode)
+                {
+                    startType = typeNode.Value.GetClrType();
+                }
 
                 Func<IXamlType> startTypeResolver = startType is not null ? () => startType : () =>
                 {

src/Markup/Avalonia.Markup.Xaml.Loader/CompilerExtensions/XamlIlBindingPathHelper.cs

@@ -47,7 +47,11 @@ namespace Avalonia.Markup.Xaml.XamlIl.CompilerExtensions
                     return startTypeResolver();
                 }
 
-                if (bindingPathAssignment.Values[0] is ParsedBindingPathNode bindingPathNode)
+                if (bindingPathAssignment.Values[0] is XamlIlBindingPathNode pathNode)
+                {
+                    bindingResultType = pathNode.BindingResultType;
+                }
+                else if (bindingPathAssignment.Values[0] is ParsedBindingPathNode bindingPathNode)
                 {
                     var transformed = TransformBindingPath(
                         context,
@@ -63,7 +67,7 @@ namespace Avalonia.Markup.Xaml.XamlIl.CompilerExtensions
                 }
                 else
                 {
-                    throw new InvalidOperationException();
+                    throw new InvalidOperationException("Invalid state of Path property");
                 }
             }
 
@@ -240,6 +244,7 @@ namespace Avalonia.Markup.Xaml.XamlIl.CompilerExtensions
                     case TemplatedParentBindingExpressionNode templatedParent:
                         var templatedParentField = context.GetAvaloniaTypes().StyledElement.GetAllFields()
                             .FirstOrDefault(f => f.IsStatic && f.IsPublic && f.Name == "TemplatedParentProperty");
+                        nodes.Add(new SelfPathElementNode(selfType));
                         nodes.Add(new XamlIlAvaloniaPropertyPropertyPathElementNode(
                             templatedParentField,
                             templatedParent.Type));
@@ -374,6 +379,12 @@ namespace Avalonia.Markup.Xaml.XamlIl.CompilerExtensions
 
             public static IXamlType GetTargetType(IXamlAstNode namescopeRoot, string name)
             {
+                // If we start from the nested scope - skip it.
+                if (namescopeRoot is NestedScopeMetadataNode scope)
+                {
+                    namescopeRoot = scope.Value;
+                }
+                
                 var finder = new ScopeRegistrationFinder(name);
                 namescopeRoot.Visit(finder);
                 return finder.TargetType;
@@ -399,6 +410,7 @@ namespace Avalonia.Markup.Xaml.XamlIl.CompilerExtensions
 
             IXamlAstNode IXamlAstVisitor.Visit(IXamlAstNode node)
             {
+                // Ignore name registrations, if we are inside of the nested namescope.
                 if (_childScopesStack.Count == 0 && node is AvaloniaNameScopeRegistrationXamlIlNode registration)
                 {
                     if (registration.Name is XamlAstTextNode text && text.Text == Name)

src/Markup/Avalonia.Markup.Xaml/MarkupExtensions/CompiledBindings/CompiledBindingPath.cs

@@ -74,6 +74,8 @@ namespace Avalonia.Markup.Xaml.MarkupExtensions.CompiledBindings
             return pathRoot ?? new EmptyExpressionNode();
         }
 
+        internal IEnumerable<ICompiledBindingPathElement> Elements => _elements;
+        
         internal SourceMode SourceMode => _elements.Count > 0 && _elements[0] is IControlSourceBindingPathElement ? SourceMode.Control : SourceMode.Data;
 
         internal object RawSource { get; }

tests/Avalonia.Markup.Xaml.UnitTests/MarkupExtensions/CompiledBindingExtensionTests.cs

@@ -3,22 +3,23 @@ using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.ComponentModel;
 using System.Globalization;
+using System.Linq;
 using System.Reactive.Subjects;
-using System.Text;
 using System.Threading.Tasks;
 using Avalonia.Controls;
 using Avalonia.Controls.Presenters;
 using Avalonia.Controls.Templates;
+using Avalonia.Data;
 using Avalonia.Data.Converters;
 using Avalonia.Data.Core;
 using Avalonia.Input;
 using Avalonia.Markup.Data;
+using Avalonia.Markup.Xaml.MarkupExtensions;
+using Avalonia.Markup.Xaml.MarkupExtensions.CompiledBindings;
 using Avalonia.Markup.Xaml.Templates;
 using Avalonia.Media;
 using Avalonia.Metadata;
 using Avalonia.UnitTests;
-using JetBrains.Annotations;
-using XamlX;
 using Xunit;
 
 namespace Avalonia.Markup.Xaml.UnitTests.MarkupExtensions
@@ -102,6 +103,91 @@ namespace Avalonia.Markup.Xaml.UnitTests.MarkupExtensions
                 Assert.Equal(dataContext.StringProperty, textBlock.Text);
             }
         }
+        
+        [Fact]
+        public void ResolvesPathPassedByPropertyWithInnerItemTemplate()
+        {
+            using (UnitTestApplication.Start(TestServices.StyledWindow))
+            {
+                var xaml = @"
+<Window xmlns='https://github.com/avaloniaui'
+        xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'
+        xmlns:local='clr-namespace:Avalonia.Markup.Xaml.UnitTests.MarkupExtensions;assembly=Avalonia.Markup.Xaml.UnitTests'
+        x:DataType='local:TestDataContext'>
+    <ItemsControl Name='itemsControl' Items='{CompiledBinding Path=ListProperty}'>
+	    <ItemsControl.ItemTemplate>
+		    <DataTemplate>
+			    <TextBlock />
+		    </DataTemplate>
+	    </ItemsControl.ItemTemplate>
+    </ItemsControl>
+</Window>";
+                var window = (Window)AvaloniaRuntimeXamlLoader.Load(xaml);
+                var textBlock = window.FindControl<ItemsControl>("itemsControl");
+
+                var dataContext = new TestDataContext
+                {
+                    ListProperty =
+                    {
+                        "Hello"
+                    } 
+                };
+
+                window.DataContext = dataContext;
+
+                Assert.Equal(dataContext.ListProperty, textBlock.Items);
+            }
+        }
+        
+        [Fact]
+        public void ResolvesDataTypeFromBindingProperty()
+        {
+            using (UnitTestApplication.Start(TestServices.StyledWindow))
+            {
+                var xaml = @"
+<Window xmlns='https://github.com/avaloniaui'
+        xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'
+        xmlns:local='clr-namespace:Avalonia.Markup.Xaml.UnitTests.MarkupExtensions;assembly=Avalonia.Markup.Xaml.UnitTests'>
+    <TextBlock Text='{CompiledBinding StringProperty, DataType=local:TestDataContext}' Name='textBlock' />
+</Window>";
+                var window = (Window)AvaloniaRuntimeXamlLoader.Load(xaml);
+                var textBlock = window.FindControl<TextBlock>("textBlock");
+
+                var dataContext = new TestDataContext
+                {
+                    StringProperty = "foobar"
+                };
+
+                window.DataContext = dataContext;
+
+                Assert.Equal(dataContext.StringProperty, textBlock.Text);
+            }
+        }
+        
+        [Fact]
+        public void ResolvesDataTypeFromBindingProperty_TypeExtension()
+        {
+            using (UnitTestApplication.Start(TestServices.StyledWindow))
+            {
+                var xaml = @"
+<Window xmlns='https://github.com/avaloniaui'
+        xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'
+        xmlns:local='clr-namespace:Avalonia.Markup.Xaml.UnitTests.MarkupExtensions;assembly=Avalonia.Markup.Xaml.UnitTests'>
+    <TextBlock Text='{CompiledBinding StringProperty, DataType={x:Type local:TestDataContext}}' Name='textBlock' />
+</Window>";
+                var window = (Window)AvaloniaRuntimeXamlLoader.Load(xaml);
+                var textBlock = window.FindControl<TextBlock>("textBlock");
+
+                var dataContext = new TestDataContext
+                {
+                    StringProperty = "foobar"
+                };
+
+                window.DataContext = dataContext;
+
+                Assert.Equal(dataContext.StringProperty, textBlock.Text);
+            }
+        }
 
         [Fact]
         public void ResolvesStreamTaskBindingCorrectly()
@@ -641,6 +727,64 @@ namespace Avalonia.Markup.Xaml.UnitTests.MarkupExtensions
             }
         }
 
+        [Fact]
+        public void ResolvesRelativeSourceBindingFromTemplate()
+        {
+            using (UnitTestApplication.Start(TestServices.StyledWindow))
+            {
+                var xaml = @"
+<ContentControl xmlns='https://github.com/avaloniaui'
+                Content='Hello'>
+    <ContentControl.Styles>
+        <Style Selector='ContentControl'>
+            <Setter Property='Template'>
+                <ControlTemplate>
+                    <ContentPresenter Content='{CompiledBinding Content, RelativeSource={RelativeSource TemplatedParent}}' />
+                </ControlTemplate>
+            </Setter>
+        </Style>
+    </ContentControl.Styles>
+</ContentControl>";
+
+                var contentControl = AvaloniaRuntimeXamlLoader.Parse<ContentControl>(xaml);
+                contentControl.Measure(new Size(10, 10));
+                
+                var result = contentControl.GetTemplateChildren().OfType<ContentPresenter>().First();
+                Assert.Equal("Hello", result.Content);
+            }
+        }
+        
+        [Fact]
+        public void ResolvesElementNameInTemplate()
+        {
+            using (UnitTestApplication.Start(TestServices.StyledWindow))
+            {
+                var xaml = @"
+<ContentControl xmlns='https://github.com/avaloniaui'
+                Content='Hello'>
+    <ContentControl.Styles>
+        <Style Selector='ContentControl'>
+            <Setter Property='Template'>
+                <ControlTemplate>
+                    <Panel>
+                        <TextBox Name='InnerTextBox' Text='Hello' />
+                        <ContentPresenter Content='{CompiledBinding Text, ElementName=InnerTextBox}' />
+                    </Panel>
+                </ControlTemplate>
+            </Setter>
+        </Style>
+    </ContentControl.Styles>
+</ContentControl>";
+
+                var contentControl = AvaloniaRuntimeXamlLoader.Parse<ContentControl>(xaml);
+                contentControl.Measure(new Size(10, 10));
+                
+                var result = contentControl.GetTemplateChildren().OfType<ContentPresenter>().First();
+                
+                Assert.Equal("Hello", result.Content);
+            }
+        }
+        
         [Fact]
         public void Binds_To_Source()
         {
@@ -1145,6 +1289,28 @@ namespace Avalonia.Markup.Xaml.UnitTests.MarkupExtensions
                 Assert.Equal("bar-" + typeof(TestDataContext).FullName, textBlock.Text);
             }
         }
+        
+        [Fact]
+        public void SupportCastToTypeInExpressionWithProperty_ExplicitPropertyCast()
+        {
+            using (UnitTestApplication.Start(TestServices.StyledWindow))
+            {
+                var xaml = @"
+<Window xmlns='https://github.com/avaloniaui'
+        xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'
+        xmlns:local='using:Avalonia.Markup.Xaml.UnitTests.MarkupExtensions'>
+    <ContentControl Content='{CompiledBinding $parent.((local:IHasExplicitProperty)DataContext).ExplicitProperty}' Name='contentControl' />
+</Window>";
+                var window = (Window)AvaloniaRuntimeXamlLoader.Load(xaml);
+                var contentControl = window.GetControl<ContentControl>("contentControl");
+
+                var dataContext = new TestDataContext();
+
+                window.DataContext = dataContext;
+
+                Assert.Equal(((IHasExplicitProperty)dataContext).ExplicitProperty, contentControl.Content);
+            }
+        }
 
         [Fact]
         public void Binds_To_Self_Without_DataType()
@@ -1366,6 +1532,43 @@ namespace Avalonia.Markup.Xaml.UnitTests.MarkupExtensions
             }
         }
 
+        [Fact]
+        public void ResolvesDataTypeForAssignBinding()
+        {
+            using (UnitTestApplication.Start(TestServices.StyledWindow))
+            {
+                var xaml = @"
+<local:AssignBindingControl xmlns='https://github.com/avaloniaui'
+        xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'
+        xmlns:local='clr-namespace:Avalonia.Markup.Xaml.UnitTests.MarkupExtensions;assembly=Avalonia.Markup.Xaml.UnitTests'
+        x:DataType='local:TestDataContext'
+        X='{CompiledBinding StringProperty}' />";
+                var control = (AssignBindingControl)AvaloniaRuntimeXamlLoader.Load(xaml);
+                var compiledPath = ((CompiledBindingExtension)control.X).Path;
+
+                var node = Assert.IsType<PropertyElement>(Assert.Single(compiledPath.Elements));
+                Assert.Equal(typeof(string), node.Property.PropertyType);
+            }
+        }
+        
+        [Fact]
+        public void ResolvesDataTypeForAssignBinding_FromBindingProperty()
+        {
+            using (UnitTestApplication.Start(TestServices.StyledWindow))
+            {
+                var xaml = @"
+<local:AssignBindingControl xmlns='https://github.com/avaloniaui'
+        xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'
+        xmlns:local='clr-namespace:Avalonia.Markup.Xaml.UnitTests.MarkupExtensions;assembly=Avalonia.Markup.Xaml.UnitTests'
+        X='{CompiledBinding StringProperty, DataType=local:TestDataContext}' />";
+                var control = (AssignBindingControl)AvaloniaRuntimeXamlLoader.Load(xaml);
+                var compiledPath = ((CompiledBindingExtension)control.X).Path;
+
+                var node = Assert.IsType<PropertyElement>(Assert.Single(compiledPath.Elements));
+                Assert.Equal(typeof(string), node.Property.PropertyType);
+            }
+        }
+        
         void Throws(string type, Action cb)
         {
             try
@@ -1410,6 +1613,11 @@ namespace Avalonia.Markup.Xaml.UnitTests.MarkupExtensions
     public interface IHasPropertyDerived : IHasProperty
     { }
 
+    public interface IHasExplicitProperty
+    {
+        string ExplicitProperty { get; }
+    }
+
     public class AppendConverter : IValueConverter
     {
         public static IValueConverter Instance { get; } = new AppendConverter();
@@ -1429,7 +1637,7 @@ namespace Avalonia.Markup.Xaml.UnitTests.MarkupExtensions
 
     public class TestDataContextBaseClass {}
     
-    public class TestDataContext : TestDataContextBaseClass, IHasPropertyDerived
+    public class TestDataContext : TestDataContextBaseClass, IHasPropertyDerived, IHasExplicitProperty
     {
         public string StringProperty { get; set; }
 
@@ -1449,6 +1657,10 @@ namespace Avalonia.Markup.Xaml.UnitTests.MarkupExtensions
 
         public INonIntegerIndexerDerived NonIntegerIndexerInterfaceProperty => NonIntegerIndexerProperty;
 
+        string IHasExplicitProperty.ExplicitProperty => "Hello"; 
+
+        public string ExplicitProperty => "Bye"; 
+
         public class NonIntegerIndexer : NotifyingBase, INonIntegerIndexerDerived
         {
             private readonly Dictionary<string, string> _storage = new Dictionary<string, string>();
@@ -1534,4 +1746,9 @@ namespace Avalonia.Markup.Xaml.UnitTests.MarkupExtensions
     }
     
     public class CustomDataTemplateInherit : CustomDataTemplate { }
+
+    public class AssignBindingControl : Control
+    {
+        [AssignBinding] public IBinding X { get; set; }
+    }
 }